Biagio Rossi – PhD Student LHEP, University of Bern Biagio Rossi – PhD Student LHEP, University of Bern 1. Report on stautus of Analysis of capillary target 2. Report on LN-TPC design hardware and schedule of next activities 3. Electronic for ARGONTUBE 1. Report on stautus of Analysis of capillary target 2. Report on LN-TPC design hardware and schedule of next activities 3. Electronic for ARGONTUBE Novel Detector Meeting, Bern, 31 January 2007

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Report on status of Analysis of capillary target People involved: A. Ereditato - I. Kreslo - B. Rossi – H. U. Schutz and SOREQ

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan November 06: AGREEMENT between SOREQ-LHEP December 06: Preliminary tests of capillaries, using gamma and neutron sources. A picture of the detector during some tests with radioactive sources Pattern recognition of Capillary bundles Genaury 07: Developing SW for analysis. Febraury 07: Preliminary Analysis. March 07: Test beam in Germany Detector geometry: Shape: Cilindrical (5  m radius glass capillaries embedded) Radius: 0.7 cm - Lenght: 10 cm

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Display of events ITEMS: 1.Pedestal background subtraction for every pixel 2.Active surface determination ( with a very near Cs  -ray source ) 3.Automatic Recostruction (by SW) of the “active surface” 4.Data analysis BACKGROUND SOURCES: 1.Isolated electrons extracted inside “Image Intensifier” (expecially for electrons) 2.Isolated Ions extracted inside “Image Intensifier” (expecially for protons) PRELIMINARY “BLIND ANALYSIS” ON NEUTRON EVENTS 1.Proton tracks are more easy to characterize respect to electrons 2.Direction of the TRACKs Event with a Pu source (neutron source)

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Active surface determination ITEMS: 1.Active surface determination ( with a very near Cs  -ray source ) 2.Automatic Recostruction (by SW) of the “active surface” Event with a Cs source (gamma source)

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Proton event Event with a Pu source (neutron source)

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Pulse Height (Energy) distribution Pu Event nr. 1 - Pulse Height (Energy) distribution Subtraction of the Pulse Height (Energy) distribution Mean Value to all pixels High_threshold = n_sigma * En_RMS Low_threshold = n_RMS * En_RMS

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Example of Clustering routine ( 1 ) Reconstruction using Clustering routine with 6 sigma threshold

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Example of Clustering Energy routine ( 1 ) Energy distribution (up) and Cluster Energy Distribution (down) - 6 sigma th.

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Example of Clustering routine ( 2 ) Reconstruction using Clustering routine with 8 sigma threshold

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Example of Clustering Energy routine ( 2 ) Energy distribution (up) and Cluster Energy Distribution (down) - 8 sigma th.

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Zoom of a Pu Event( 1 ) Zoom of a Pu “Clusterized” CIRCULAR Event - 8 sigma th.

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Zoom of a Pu Event( 2 ) Zoom of a Pu “Clusterized” NOT CIRCULAR Event - 8 sigma th.

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Where we are now: 1. Pulse Height Distribution 2. Clustering reconstruction (setting high and low threshold – we can also choose to reconstruct only the track with a MIN nr. of hits) 2. Cluster Pulse Height distribution for every event and also on all the events of the same run 3. Geometric Coordinate Mean Value (and RMS) of every Cluster 4. Geometric Pulse Height Mean Value (and RMS) of every Cluster 5. From point 3. and 4. we aspect to reconstruct the direction of the Proton tracks In which way the SW will be developed(we are only thinking to the best solutions): 1. Studies to reconstruct also the shape of the clusters a. Direction of the tracks with a linear fit of the clusters b. Elliptical fit of the clusters 2. Pulse Heght Density respect to the geometrical dimensions of every cluster ITEMS: 1. Do the Simulation – Igor propose to use a Opera software based on an evolution of GEANT3 to C++ language – I can start to do it (not alone) within 10 days. 2. New meausurements with new capillaris - ? ? ?

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Report on LN-TPC design hardware and schedule of next activities People involved: A. Ereditato - M. Hess - S. Janos – I. Kreslo - M. Messina - U. Moser - B. Rossi – H. U. Schutz

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Dewar - ready 2.TPC - ready 3.New wire plane – ready 4.“BIG Flange” - ready 5.“Feedthrough Flanges” - ready 6.Vacuum pumps (Rotative and Turbo)- ready 7.HV supply and signal feedthrough 8.Analogic Front End board (4 amplifier = we can read 4 wires contemporary ) - ready Status of activities LN-TPC

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan HV feedthrough – under construction 2.Design and Build the support for the radioactive source – half of FEB (not needed for preliminary test) 3.Cleaning and Assembly TPC – 1 week 4.Build support for TPC – 1 week 5.Levelmeter ( PT100 ? ) – 10 days 6.Vacuum and HV test - 13 th Feb ? Proposal for preliminary test filling dewar with Liquid Argon 1. about 300 l of Liquid Argon – Who ? - When ? Schedule of next activities

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan Electronic for ARGONTUBE People involved: M. Hess – L. Martinez – B. Rossi

Biagio Rossi - Novel Detector Meeting Meeting - Bern University - 31 Jan We have mounted the ADLINK PCI fast bus board into a Linux PC (O.S. Fedora 5) and INSTALLED its drivers. It seems to work correctly (special thanks to Luis). In next 10 days I'll start to develop the software of the board following the electronic technical request of Max. People involved: M. Hess – L. Martinez – B. Rossi